2002 possible trans/electrical prob. Pls help
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From: San Francisco, Ca
2002 possible trans/electrical prob. Pls help
Hey guys and possible ladies,
I am new to the forum but have been on reading quite a bit. My problem is with my wife's 2002 caravan, 3.3, with apx 100k. She seems to think it started when the lights on apx half the dash started to dim/go out. We then felt the shifting to be quite abrupt and then it started to stall on start up. Very difficult to get it warmed up and running. At that point I had a full tune up done. (plugs, wires, oil,). I then took it to a transmission shop who checked the check engine codes at that time and said we needed a new shift solenoid, which we then replaced. He said the tranny itself looked fine. But this did not help. At this point we have had the solenoid pack replaced, the idle control valve, the ignition coil, along with having the throttle body cleaned. Nothing seems to help. Nothing better except now it bucks when trying to stop and doesn't seem to want to stop when coming to a stop and shift somewhat erratically and still stalls over and over upon start up.We are now getting the codes, p0846, p0750 which is the solenoid pack again, and p0731, and p0700. I just don't think these codes are the real problem. Any help would be greatly appreciated.
Thanks
I am new to the forum but have been on reading quite a bit. My problem is with my wife's 2002 caravan, 3.3, with apx 100k. She seems to think it started when the lights on apx half the dash started to dim/go out. We then felt the shifting to be quite abrupt and then it started to stall on start up. Very difficult to get it warmed up and running. At that point I had a full tune up done. (plugs, wires, oil,). I then took it to a transmission shop who checked the check engine codes at that time and said we needed a new shift solenoid, which we then replaced. He said the tranny itself looked fine. But this did not help. At this point we have had the solenoid pack replaced, the idle control valve, the ignition coil, along with having the throttle body cleaned. Nothing seems to help. Nothing better except now it bucks when trying to stop and doesn't seem to want to stop when coming to a stop and shift somewhat erratically and still stalls over and over upon start up.We are now getting the codes, p0846, p0750 which is the solenoid pack again, and p0731, and p0700. I just don't think these codes are the real problem. Any help would be greatly appreciated.
Thanks
Welcome to DF
Here part of a pdf file we use. And some causes.P0731 is gear ratio error in 1st. If you like the rest of the file, just send me a pm with your email address.
Symptom:
P0750-L-R SOLENOID CIRCUIT
When Monitored and Set Condition:
P0750-L-R SOLENOID CIRCUIT
When Monitored: Ignition key is turned from the OFF to RUN position and/or key is
turned from the CRANK to the RUN position, then every 10 secs thereafter, or when a
speed ratio or pressure switch error occurs. All 4 solenoids are tested for continuity
continuously.
Set Condition: If a solenoid is On, power is momentarily interrupted, then reenergized. If
solenoid is Off, power is momentarily energized, then deenergized. If an inductive spike is
not sensed by the TCM, it is retested. If the solenoid fails 4 times the code sets.
POSSIBLE CAUSES
CHECKING SYMPTOMS AND POSSIBLE CAUSES
LOW BATTERY VOLTAGE CAUSING SYMPTOM
TCM PIN 53 TO GND OPEN
TCM PIN 57 TO GND OPEN
TCR OUTPUT (SWITCHED B+) OPEN
L-R SOLENOID CONTROL CKT SHORT TO GROUND
SOLENOID CNTRL CKT TO SOLENOID CONNECTOR OPEN
L-R SOLENOID SHORTED IN SOLENOID PACK
TCM OPEN GROUND DEFAULT
TRANSMISSION SOLENOID PACK OPEN (L-R SECTION)
INTERMITTENT CODE P0750
TEST ACTION APPLICABILITY
1 With the DRBIIIt, read DTC’s.
Is the Starts Since Set Counter 3 or less ?
All
Yes ® Go To 3
No ® Go To 2
2 Record all DTC’s and one trip failures.
With the DRBIIIt, erase DTC’s.
Start and run the Engine for a minimum of thirty seconds.
Did the erased DTC come back ?
All
Yes ® Go To 3
No ® Go To 10
104
TRANSMISSION
Here part of a pdf file we use. And some causes.P0731 is gear ratio error in 1st. If you like the rest of the file, just send me a pm with your email address.
Symptom:
P0750-L-R SOLENOID CIRCUIT
When Monitored and Set Condition:
P0750-L-R SOLENOID CIRCUIT
When Monitored: Ignition key is turned from the OFF to RUN position and/or key is
turned from the CRANK to the RUN position, then every 10 secs thereafter, or when a
speed ratio or pressure switch error occurs. All 4 solenoids are tested for continuity
continuously.
Set Condition: If a solenoid is On, power is momentarily interrupted, then reenergized. If
solenoid is Off, power is momentarily energized, then deenergized. If an inductive spike is
not sensed by the TCM, it is retested. If the solenoid fails 4 times the code sets.
POSSIBLE CAUSES
CHECKING SYMPTOMS AND POSSIBLE CAUSES
LOW BATTERY VOLTAGE CAUSING SYMPTOM
TCM PIN 53 TO GND OPEN
TCM PIN 57 TO GND OPEN
TCR OUTPUT (SWITCHED B+) OPEN
L-R SOLENOID CONTROL CKT SHORT TO GROUND
SOLENOID CNTRL CKT TO SOLENOID CONNECTOR OPEN
L-R SOLENOID SHORTED IN SOLENOID PACK
TCM OPEN GROUND DEFAULT
TRANSMISSION SOLENOID PACK OPEN (L-R SECTION)
INTERMITTENT CODE P0750
TEST ACTION APPLICABILITY
1 With the DRBIIIt, read DTC’s.
Is the Starts Since Set Counter 3 or less ?
All
Yes ® Go To 3
No ® Go To 2
2 Record all DTC’s and one trip failures.
With the DRBIIIt, erase DTC’s.
Start and run the Engine for a minimum of thirty seconds.
Did the erased DTC come back ?
All
Yes ® Go To 3
No ® Go To 10
104
TRANSMISSION
